The LipiView Ocular Surface Interferometer
The LipiView Interferometer measures the absolute thickness of the tear film lipid layer by analyzing more than one billion data points of the interferometric image of the tear film.
The patient’s tear film can be seen as an array of colors. Physicians and patients will now be able to see the interference pattern from the tear film and have a visual reference to view specular observations of the tear film.
In addition to viewing, capturing, manipulating and storing digital images of specular observations of the tear film, a patient’s blinking pattern can be evaluated.
How it works
The LipiView Interferometer operates on the principle of broad-spectrum white light interferometry, and provides a interferometric color assessment of the tear film by specular reflection. The patient’s eye is positioned in front of an illumination source that’s directed toward the tear film on the corneal surface. Light from this source passes through the tear film and is specularly reflected into a camera. The light reflecting back through the lens in the camera forms an interference pattern, called an interferogram. The advanced computer system then captures and records 32 frames per second, in real time.
The Meibomian Gland Evaluator (MGE)
The MGE allows the physician to evaluate meibomian gland secretions.
How it works
The Meibomian Gland Evaluator (MGE) is a handheld instrument used by a physician to evaluate meibomian gland secretions during routine eye examination. The instrument provides a standardized method to apply consistent, gentle pressure, between 0.8 g/mm2 and 1.2 g/mm2, to the outer skin of the lower eyelid. The presence of liquid from a meibomian gland orifice (visualized through a slit lamp biomicroscope), during expression with the MGE, indicates the meibomian gland is not obstructed.